Resolved Warning in maillog: warning: mail_queue_enter: create file maildrop/xx: Disk quota exceedeed

[roadrash]

I see many of the following warnings in /var/log/maillog

Feb 26 11:59:58 horizon postfix/postdrop[31271]: warning: mail_queue_enter: create file maildrop/787222.31271: Disk quota exceeded
Feb 26 11:59:59 horizon postfix/postdrop[2909]: warning: mail_queue_enter: create file maildrop/330109.2909: Disk quota exceeded

Can anyone explain what this means?
Google returns zero usefull results.

Thanks in advance

 

[Bitpalast]

Your disk is full. You need to clear space on the drive in order to be able to store more data.

 

[roadrash]

Thanks, that is what i thought too. So I did: df -h

Filesystem Size Used Avail Use% Mounted on
/dev/vda1 80G 36G 45G 45% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 202M 1.7G 11% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
tmpfs 379M 0 379M 0% /run/user/0

There is 45G available. So where does postdrop store the files ?

 

[Bitpalast]

Is anything like cgroups limiting the disk space usage of the service?

 

[roadrash]

Thanks,
Did a lot of digging and found out that it is not a big problem and was caused by some mailboxes that had overquota in Plesk.